Not able to access metrics from a clustered server

[rohan_sirohi]

I have 3 servers all 3 having different public IP - All 3 servers are clustered.

> Datacenter (InfluxDB is connected via metric) ~ Used Public IP in metric to connect influxDB
>> Server 1
>> Server 2
>> Server 3
>>> InfluxDB (Setup on server 3 on port 8086)

In influxDB I am getting data of server 1 and server 2 but I am not getting any data of server 3 its not even showing in influxdb Dashboard.



My virtual network is configured as

        auto vmbr0
        iface vmbr0 inet static

        address 192.168.13.1/24
        bridge-ports none
        bridge-stp off
        bridge-fd 0

        post-up   echo 1 > /proc/sys/net/ipv4/ip_forward
        post-down echo 0 > /proc/sys/net/ipv4/ip_forward
        post-up   iptables -t nat -A POSTROUTING -s '192.168.13.0/24' -o enp6s0 -j MASQUERADE
        post-down iptables -t nat -D POSTROUTING -s '192.168.13.0/24' -o enp6s0 -j MASQUERADE
        post-up   iptables -t raw -I PREROUTING -i fwbr+ -j CT --zone 1
        post-down iptables -t raw -D PREROUTING -i fwbr+ -j CT --zone 1

        post-up   iptables -t nat -A PREROUTING -i enp6s0 -p tcp --dport 80 -j DNAT --to-destination 192.168.13.107:80
        post-down iptables -t nat -D PREROUTING -i enp6s0 -p tcp --dport 80 -j DNAT --to-destination 192.168.13.107:80
        post-up   iptables -t nat -A PREROUTING -i enp6s0 -p tcp --dport 443 -j DNAT --to-destination 192.168.13.107:443
        post-down iptables -t nat -D PREROUTING -i enp6s0 -p tcp --dport 443 -j DNAT --to-destination 192.158.13.107:443

        post-up   iptables -t nat -A PREROUTING -i enp6s0 -p tcp --dport 8086 -j DNAT --to-destination 192.168.13.105:8086
        post-down iptables -t nat -D PREROUTING -i enp6s0 -p tcp --dport 8086 -j DNAT --to-destination 192.158.13.105:8086

You maybe thinking why I put the VMs behind NAT like this?
Because we cannot expose machines to the web directly and we are using a 3rd party hosting provider. As far as we know, we cannot expose more than 1 MAC address. If there is a better way, looking forward to suggestions

What can I do in my routing so I can get data of server 3 also in influxDB also??

 

[fabian]

double post: https://forum.proxmox.com/threads/not-able-to-get-metrics-from-clustered-server-influxdb2.137733/